Home / 39,672.64-54,747.30-21,767.48

Finding the Fourth Proportional to 39,672.64, 54,747.30 and 21,767.48

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Solution

The fourth proportional to 39,672.64, 54,747.30 and 21,767.48 is: 30,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,672.64 : 54,747.30 = 21,767.48 : x
  2. Step 2: Convert to fraction form
    39,672.64/54,747.30 = 21,767.48/x
  3. Step 3: Cross multiply
    39,672.64x = 54,747.30 × 21,767.48
  4. Step 4: Simplify right side
    39,672.64x = 1,191,710,757.80
  5. Step 5: Solve for x
    x = 1,191,710,757.80/39,672.64
  6. Step 6: Final answer
    x = 30,038.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.